Chagos-Laccadive Ridge

The Chagos-Laccadive Ridge on the upper left side of the picture

The Chagos-Laccadive Ridge (CLR), also known as Chagos-Laccadive Plateau^[1], is a prominent volcanic ridge and oceanic plateau extending between the Northern and the Central Indian Ocean. The CLR extends northward for approximately 2350 km from 9° S at the southern end of the Chagos Archipelago to 14° north around the Adas Bank. The islands of Chagos, the Maldives and the Lakshadweep are the above-water parts of the Chagos-Laccadive Ridge.^[2]

The vast Chagos-Laccadive Ridge was formed by the Réunion volcanic hotspot along with the southern part of the Mascarene Plateau. Both plateaux are volcanic traces of the Réunion hotspot.^[3] Although the Chagos-Laccadive Ridge is an aseismic ridge, between 1965 and 1970 an unusual, isolated swarm of earthquakes occurred on the west side of the Great Chagos Bank at approximately 6°00′S 71°20′E / 6°S 71.333°E / -6; 71.333.^[4]

See also

• Central Indian Ridge

References

1. ^ Chagos-Laccadive Plateau: Undersea Features - National Geospatial-Intelligence Agency
2. ^ R. Mukhopadhyay, A.K. Ghosh and S.D. Iyer , The Indian Ocean nodule field: geology and resource potential By Ranadhir Mukhopadhyay, 2007 ISBN-13: 978-0444529596
3. ^ E. V. Verzhbitsky (2003). "Geothermal regime and genesis of the Ninety-East and Chagos-Laccadive ridges". Journal of Geodynamics 35 (3): 289. doi:10.1016/S0264-3707(02)00068-6. http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V9X-47MJ4CX-3&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=aa2e7686477bc607611955f2aba48558. 
4. ^ GJI - An earthquake swarm on the Chagos—Laccadive Ridge and its tectonic implications

External links

• Origin and compensation of Chagos-Laccadive ridge, Indian ocean, from admittance analysis of gravity and bathymetry data
• Hydrographic Description (Indian Ocean Pilot)

Coordinates: 3°48′N 73°24′E / 3.8°N 73.4°E / 3.8; 73.4

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